ICS94228BFT IDT, Integrated Device Technology Inc, ICS94228BFT Datasheet - Page 3

• Manufacturer Part Number: ICS94228BFT
• Description: IC CLOCK CHIP PROGR AMDK7 48SSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Frequency Generatorr

Specifications of ICS94228BFT

• Input: Crystal
• Output: Clock
• Frequency - Max: 233.33MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Frequency-max: 233.33MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 94228BFT

SRESET# Signal Description
The SRESET# signal from ICS94228 system clock generator is a real time active low pulse that can be used to reset the system.
The Open-Drain Nch output Reset# pin needs to be tied to the system reset line which has a pull-up resistor. When activated,
the SRESET# output will be driven to a low with a 32ms pulse width.
General Description
The ICS94228 is a main clock synthesizer chip for AMD-K7 based systems with VIA style chipset. This provides all clocks
required for such a system.
The ICS94228 belongs to ICS new generation of programmable system clock generators. It employs serial programming I
interface as a vehicle for changing output functions, changing output frequency, configuring output strength, configuring
output to output skew, changing spread spectrum amount, changing group divider ratio and dis/enabling individual clocks.
This device also has ICS propriety 'Watchdog Timer' technology which will reset the frequency to a safe setting if the system
become unstable from over clocking.
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